/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
export default function mergeArrays(a, b) {
	const merged = a.slice()

	for (const element of b) {
		if (a.indexOf(element) < 0) {
			merged.push(element)
		}
	}

	return merged.sort((a, b) => a - b)

	// ES6 version, requires Set polyfill.
	// let merged = new Set(a)
	// for (const element of b) {
	// 	merged.add(i)
	// }
	// return Array.from(merged).sort((a, b) => a - b)
}